1613810413 has 4 divisors (see below), whose sum is σ = 1614046720. Its totient is φ = 1613574108.

The previous prime is 1613810383. The next prime is 1613810447. The reversal of 1613810413 is 3140183161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3140183161 = 31 ⋅101296231.

It is a cyclic number.

It is not a de Polignac number, because 1613810413 - 2²⁵ = 1580255981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613813413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107595 + ... + 121672.

It is an arithmetic number, because the mean of its divisors is an integer number (403511680).

Almost surely, 2^1613810413 is an apocalyptic number.

It is an amenable number.

1613810413 is a deficient number, since it is larger than the sum of its proper divisors (236307).

1613810413 is an equidigital number, since it uses as much as digits as its factorization.

1613810413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236306.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1613810413 is about 40172.2592468982. The cubic root of 1613810413 is about 1172.9626170348.

Adding to 1613810413 its reverse (3140183161), we get a palindrome (4753993574).

The spelling of 1613810413 in words is "one billion, six hundred thirteen million, eight hundred ten thousand, four hundred thirteen".